[Solved] You have a base class Vehicle with a virtual method Start(). You want to create a derived class Car that calls the base Start() method and then... Which code correctly uses base to achieve this? | C Sharp (C#)

C Sharp (C#) - Inheritance

You have a base class Vehicle with a virtual method Start(). You want to create a derived class Car that calls the base Start() method and then prints "Car started". Which code correctly uses base to achieve this?

Apublic new void Start() { base.Start(); Console.WriteLine("Car started"); }

Bpublic void Start() { base.Start(); Console.WriteLine("Car started"); }

Cpublic override void Start() { Console.WriteLine("Car started"); base.Start(); }

Dpublic override void Start() { base.Start(); Console.WriteLine("Car started"); }

Step-by-Step Solution

Solution:

Step 1: Use override to extend base virtual method
Since Vehicle.Start() is virtual, Car must override it to extend behavior.
Step 2: Call base.Start() first, then print message
public override void Start() { base.Start(); Console.WriteLine("Car started"); } correctly overrides Start(), calls base.Start(), then prints "Car started".
Final Answer:
public override void Start() { base.Start(); Console.WriteLine("Car started"); } -> Option D
Quick Check:
Override virtual method and call base first [OK]

Quick Trick: Override virtual methods and call base.Method() to extend [OK]

Common Mistakes:

MISTAKES

Using new instead of override
Calling base after derived code
Not overriding virtual method

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Which code correctly uses base to achieve this?

Step 1: Use override to extend base virtual method

Step 2: Call base.Start() first, then print message

Final Answer:

Quick Check:

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